baber/WOPTO huggingface dataset:
Patent CA-2145559-A1 (CA)
Title: Alkyloxyalkaneamines Useful as Cationic Froth Flotation Collectors
Inventor: RIGGS WILLIAM F
IPC: B03D1/02
Filed: 1995-03-27
Abstract: A process of separating at least one mineral, e.g. silica, from an aqueous medium, e.g. one containing iron ore, by froth flotation using cationic alkyloxyalkaneamine collectors free of acrylonitrile is described.      Alkyloxyalkaneamines free of acrylonitrile may be made by reacting an alcohol with an alkenenitrile having at least 4 to 13 carbon atoms. This process produces branching on the third carbon from the nitrogen of the resulting compound, e.g. 3-hexoxypentaneamine. In addition to the absence of acrylonitrile, the alkyloxyalkaneamines give better selectivity than some conventional etheramines.
Patent CA-2145937-A1 (CA)
Title: Power shovel
Inventor: LEIBOVITZ EITAN
IPC: B66C3/10
Filed: 1995-03-30
Abstract: A power shovel for moving material from the ground includes a linkage mechanism adapted to be suspended from a drive unit capable of raising and lowering a load, and a pair of scoops pivotally mounted to the lower end of the linkage mechanism such that raising the upper end of the linkage mechanism to space the scoops above the ground closes the scoops to enable them to pick up a load on the ground, and lowering the upper end of the linkage mechanism to bring the scoops into contact with the ground opens the scoops to cause them to drop the load.  A releasable retainer device is carried by each of the scoops and is selectively engageable with a lower part of the linkage mechanism to retain the scoops in their open position when the upper end of the linkage mechanism is raised, or disengageable from the lower part of the linkage mechanism to permit the pair of scoops to move to a closed position when the upper end of the linkage mechanism is raised.
Patent CA-2146310-A1 (CA)
Title: Bowed out chisel insert for rock bits
Inventor: PORTWOOD GARY
IPC: E21B10/52
Filed: 1995-04-04
Abstract: A chisel type insert is disclosed having a contoured surface in which the vertical lines located on the surface are bowed outwardly in a convex manner thereby eliminating blend radii from the cutting tip and the high stress concentrations associated therewith.
Patent CA-2147049-A1 (CA)
Title: Seat
Inventor: RASENBERG JOHANNES THEODORUS M
IPC: B60N2/42
Filed: 1995-04-13
Abstract: The invention relates to a seat, in particular for use in a vehicle, provided with a seat part, a seat back and a head support, wherein means are arranged between the seat back and the head support for supporting the neck of a user.          These neck supporting means can comprise at least one pillow body protruding forward at least partially from a principal plane defined by the seat back and the head sup-port, which pillow body can have a contour form correspon-ding with the neck contours of the user. The pillow body can be deformable and height-adjustable relative to the seat part.
Patent CA-2147247-A1 (CA)
Title: Refractory compositions
Inventor: TRINKL GERD
IPC: F27D1/00
Filed: 1993-11-29
Abstract: Substantially dry, self hardening, thermally activated refractory compositions, suitable for use to produce linings for furnaces or metallurgical vessels such as ladles, tundishes or launders, comprise particulate refractory material, an inorganic binder having associated therewith chemically or physically bound water such as sodium metasilicate pentahydrate or tribasic sodium phosphate dodecahydrate, and an element or compound, such as aluminium, which will react exothermically with the inorganic binder. The compositions may also contain an inhibitor such as a mineral oil or a vegetable oil to inhibit premature exothermic reaction.
Patent CA-2147310-A1 (CA)
Title: Dielectric resonator filter
Inventor: PARKER JOHN RAYMOND
IPC: H01P7/10
Filed: 1995-04-19
Abstract: ABSTRACT               A DIELECTRIC RESONATOR FILTER   A dielectric resonator filter is provided which includes at least one microwave resonator having a body member with a cylindrical conductive cavity of uniform diameter formed therein, symetrically disposed about a longitudinal axis, the cavity being divided into two sections, of unequal lengths, by an integral inwardly projecting flange; a cylindrical dielectric resonator having a coefficient of thermal expansion to match that of the body member, the longitudinal axis of the resonator being co-axial with the longitudinal axis of the cavity; two cylindrical support members for supporting the dielectric resonator within the longer section of the cavity, the support members being of quartz and located one on each side of the dielectric resonator; and securing means for securing the two support members, with the dielectric resonator therebetween, within the cavity, one of the support members being in an abutting relationship with a surface of the inwardly projecting flange.
Patent CA-2150045-A1 (CA)
Title: Corner Post Support Member
Inventor: WILSON RICHARD C
IPC: E04F13/08
Filed: 1995-05-24
Abstract: A support member for a siding corner post which is spaced from the outer corner of a building to form a longitudinally extending hollow space within which the support member is located.
Patent CA-2152670-A1 (CA)
Title: Escape sequence using monitoring of control signal states
Inventor: DUNN TAVE P
IPC: H04M11/06
Filed: 1993-12-07
Abstract: A method and apparatus for escaping from transparent mode in which the Data Communication Equipment will escape from transparent mode (into command mode) if a user programmed escape character string is received in coincidence with the toggling of a control signal such as Request To Send (RTS). Advantageously, this escape method can be used in conjunction with time/data escape methods that are based solely on activity on the received data line. When the two methods are used together, a supervisor program or control device can force an escape notwithstanding the user programmed time constraint parameters in the DCC.
Patent CA-2159915-A1 (CA)
Title: Systemic effects of nitric oxide inhalation
Inventor: FROSTELL CLAES G
IPC: A61K33/04
Filed: 1994-03-31
Abstract: Nitric oxide or nitric oxide releasing or delivering compounds administered by the inhalation route to humans and animals in need thereof have a systemic and pulmonary effect of preventing or treating blood platelet aggregation and coagulation and thus, are useful for the prevention or treatment of systemic platelet aggregation, pulmonary emboli, angina pectoris and acute respiratory distress syndrome.
Patent CA-2162426-A1 (CA)
Inventor: CHARLOT LINCOLN H JR
IPC: E05B73/00
Filed: 1995-11-08
Abstract: A device for enabling attachment of a shoplifting detection tag (24) to an article to be protected includes a first attachment rod (10) having an eyelet (14) at one end, a center portion (16) having a bend (18), and a straight portion (20) at the opposite end from the eyelet suitable for insertion into a clutch mechanism (22) of a shoplifting detection tag (24); and a second attachment rod (12) having an eyelet (26) at one end, a center portion (28) having a bend (30), and a straight portion (32) at the opposite end from the eyelet. The first and second attachment rods (10, 12) and the eyelets (14, 26) thereof are of such relative dimensions that the first and second attachment rods may be fitted together to encompass a portion (33) of the article to be protected by passing the straight portion (20) of the first rod (10) through the eyelet (26) of the second rod (12) and by passing the straight portion (32) of the second rod (12) through the eyelet (14) of the first rod (10), while allowing the straight portion (20) of the first rod (10) to be inserted into the clutch mechanism (22) of the shoplifting detection tag (24). The attachment rods (10, 12) are made from steel rods that are hardened so as not to be cuttable with hand tools.
Patent CA-2169029-A1 (CA)
Inventor: BONNEVILLE MARC ETIENNE
IPC: H04R3/00
Filed: 1996-02-07
Abstract: In a loudspeaker of the kind in which negative feedback derived by monitoring actual displacement of the loudspeaker's electroacoustic transducer or cone is used to compensate for transducer non-linearities, overload protection is provided by two variable gain amplifiers between the audio input and the power amplifier. One variable gain amplifier is within the feedback loop and the other variable gain amplifier precedes the feedback loop. A detection circuit has two thresholds close to but below the level at which clipping will begin. A first threshold level is about - 1.0 dB below and the second threshold level is about - 0.5 dB below. A first control signal to reduce the gain of the variable gain amplifier preceding the loop is generated when the first, lower threshold level is exceeded and causes the gain of the amplifier to decrease at a relatively slow rate. A second control signal to reduce the gain of the amplifier within the loop is generated when the higher threshold level is exceeded and reduces the gain of the amplifier within the loop very rapidly so that clipping is avoided. The first and second control signals may each be derived by a threshold amplifier and a charging circuit, the first charging circuit having a longer time constant than the time constant of the second charging circuit. Once the overload situation is under control, i.e. the signal is below the second threshold level, the second control signal increases the gain of the amplifier inside the loop, restoring full feedback. The feedback path may derive a first feedback signal component substantially proportional to the position of the electroacoustic transducer, a second feedback signal component substantially proportional to the velocity of the electroacoustic transducer and a third feedback signal component substantially proportional to acceleration of the electroacoustic transducer.
Patent CA-2171068-A1 (CA)
Inventor: HARMS JUERGEN
IPC: A61B17/70
Filed: 1996-03-05
Abstract: An anchoring member for anchoring in a bone is provided with a bone screw having a screw member (1) comprising a threaded por-tion (2) and a head (3) with a spherical segment shaped portion, and a seat part (5) for receiving the head (3) of the screw mem-ber and a rod (15) for connection with the bone screws, whereby the seat part (5) has a first end (6) and an opposite second end (7), an axis of symmetry (8) passing through the first and se-cond end, a bore (9) for passing the threaded portion (2) there-through, the bore being coaxial with the axis of symmetry, and a first region adjacent to said first end (6) having a substanti-ally U-shaped cross-section with two free legs (11, 12) compri-sing an internal screw thread (13) for receiving the rod (15) therein, whereby the bore (9) conically tapers towards the se-cond end (7) in a second portion (16) adjacent to the second end (7) with a cone angle and whereby a pressure member (20) embra-cing the screw head (3) from its side opposite to the threaded portion (2) is provided, the pressure member having an outer surface which conically tapers towards the second end (7) in a region (24) laterally surrounding the screw head (3), the cone angle corresponding to that of the portion (16) of the bore (9).
Patent CA-2171359-A1 (CA)
Title: Gaming table layout and method of play
Inventor: DOMSKY NORMAN
IPC: A63F5/04
Filed: 1996-03-08
Abstract: A gaming table surface has three or more substantially identical wagering stations,  each of the stations spaced apart from the other of stations for placing bets by a different player, each of the stations having plurality of spaces with indicia corresponding to different combinations of two numbers from one to six, respectively.
Patent CA-2175230-A1 (CA)
Title: A Method and an Apparatus for Production of a Fibrous Material Containing Curled Fibers
Inventor: KROYER KARL KRISTIAN KOBS
IPC: D04H1/54
Filed: 1994-10-28
Abstract: A method is disclosed for production of a fibrous product containing curled fibers. Rectilinear bi-component fibers (17) are applied to the upper side of a raw material sheet (2) before it is introduced into a defibrator (1). Immediately before the introduction, a heating (at 8) is effected. When the recitilinear bi-component fibers (17) are introduced into the defibrator (1), the beater bars (9) would effect a curling effect thereby providing a raw material comprising curled bi-component fibers. Hereby it is possible to substantially reduce the manufacturing costs, however, having the effect of curled bi-component fibers in the final fibrous product. Moreover, a good bonding of the fibers is obtained in the final product.
Patent CA-2178714-A1 (CA)
Inventor: GREGOROVICH BASIL V
IPC: C07F7/18
Filed: 1995-01-19
Abstract: L'invention se rapporte à des nouveaux produits d'addition de composés vinyldioxo comprenant un groupe terminal fonctionnel silyle réticulable. Ces produits d'addition sont utilisés dans la préparation de compositions de revêtement durcissables.
Patent CA-2180857-A1 (CA)
Title: A Method for Inspecting the Elements of Piping Systems by Electromagnetic Waves
Inventor: SUYAMA KIICHI
IPC: G01N22/02
Filed: 1995-12-18
Abstract: Electromagnetic waves are driven in the pipe to be inspected in the pip-ing system by a transmitting antenna of a transmitter, to be propagated in the pipe; while a receiving antenna of a receiver is moved outside the pipe along the pipe, to receive leaking electromagnetic waves for inspecting elements of the piping system, and the location concerned of each element of the piping system to be inspected is detected in reference to the location of the receiving antenna where the level of electromagnetic waves received by the receiver be-comes a peak. The locations to be inspected are the damaged portions such as holes formed by corrosion, cracks, etc. in the pipes, and the locations of joints, etc. It is also possible to move the transmitting antenna outside along the pipe, while arranging the receiving antenna at proper place in the pipe. Furthermore, it is also possible to move both the transmitting antenna and the receiving an-tenna in synchronization to effect the above inspection. When either the trans-mitting antenna or the receiving antenna is moved, the frequency of electro-magnetic waves can be a frequency propagated in the pipe or can also be lower than the cut-off frequency. On the other hand, the antenna can be made long and kept in the pipe, to use a frequency lower than the cut-off frequency with-out moving the antenna.
Patent CA-2181579-A1 (CA)
Inventor: KLING ROBERT
IPC: A61F13/49
Filed: 1995-02-17
Abstract: Pour empêcher que les couches-culottes (1) ne glissent vers le bas, sans qu'il soit nécessaire de recourir à un nombre excessif de fils élastiques ou à des fils élastiques longs et solides, et donc, inconfortables, au moins certaines parties de la surface de la ceinture en contact avec la peau de l'utilisateur sont pourvues d'un adhésif thermofusible, pour constituer, par exemple, contre la peau une surface à friction accrue (6a-d), de préférence enduite par projection d'un motif par points, si possible uniquement aux emplacements correspondant aux hanches droite et gauche de la ceinture.
Patent CA-2188520-A1 (CA)
Title: Coupling for hose and method of manufacturing the same
Inventor: HORIMOTO AKIRA
IPC: F16L37/24
Filed: 1996-10-22
Abstract: A coupling for coupling hoses comprising a pair of coupling main bodies that are structurally identical and undiscriminable for male and female. Each of said coupling main bodies is provided at the front end surface with a sealing surface for mutual abutment and at the front end with a plurality of engaging projections and engaging recesses, each of said engaging recesses being arranged between any two adjacent engaging projections, so that the engaging projections and the engaging recesses of the two coupling main bodies can be complementarily engaged with the corresponding engaging projections and engaging recesses of the other coupling main bodies.      The engaging projections are provided with respective hooked anchor sections that are peripherally engaged to restrict axial movement and consequently couple the pair of coupling main bodies.
Patent CA-2190347-A1 (CA)
Title: Gas delivery system with universal outlet
Inventor: HODGES STEVEN MICHAEL
IPC: F16L37/60
Filed: 1996-04-08
Abstract: A gas outlet system (30) that includes first indexing structure (63, 68) mating with a first adaptor (11) for releasably connecting the first adaptor (11) to the outlet (30), and a second indexing structure (55, 68) mating with a second adaptor (21) for releasably connecting the second adaptor (21) to the outlet (30).  The gas outlet system (30) includes an engaging member (84, 70) for engaging the adaptor (11, 21) to the outlet (30) and includes first (26) and second (35) urging members each independently operable to disengage the engaging member (84, 70) to release the adaptor (11, 21).
Patent CA-2191114-A1 (CA)
Title: Electrochemical hydrogen storage alloys and batteries fabricated from mg containing base alloys
Inventor: OVSHINSKY STANFORD R
IPC: C01B3/00
Filed: 1995-05-30
Abstract: An electrochemical hydrogen storage material comprising: (Base Alloy)aMb where, Base Alloy is an alloy of Mg and Ni in a ratio of from about 1:2 to about 2:1, preferably 1:1; M represents at least one modifier element chosen from the group consisting of Co, Mn, Al, Fe, Cu, Mo, W, Cr, V, Ti, Zr, Sn, Th, Si, Zn, Li, Cd, Na, Pb, La, Mm, and Ca: b is greater than 0.5, preferably 2.5, atomic percent and less than 30 atomic percent; and a + b = 100 atomic percent. Preferably, the at least one modifier is chosen from the group consisting of Co, Mn, Al, Fe, and Cu and the total mass of the at least one modifier element is less than 25 atomic percent of the final composition. Most preferably, the total mass of said at least one modifier element is less than 20 atomic percent of the final composition.
Patent CA-2197625-A1 (CA)
Title: An ink cartridge for a printer
Inventor: BETSCHON LUZIUS
IPC: B41J2/175
Filed: 1997-02-14
Abstract: An ink cartridge for a printer comprises a casing having a cover with an opening for admitting air into the interior of the casing.  An outer face of the cover has a meander-shaped capillary groove which extends from the opening to an S-shaped capillary channel.  The outer face of the cover is covered by a foil seal which overlaps one of the transverse edges of the cover.  Two cuts through the foil extend from opposed longitudinal edges into areas between two of the transverse branches of the channel.
Patent CA-2198177-A1 (CA)
Title: High-molecular-weight polypropylene having a broad molecular-weight distribution
Inventor: CHICOTE CARRION EDUARDO
IPC: C08F210/06
Filed: 1997-02-21
Abstract: The invention relates to a high-molecular-weight copolymer comprising ethylene and propylene units which has an ethylene content in the range from 1 to 10% by weight, a melt flow rate MFR (23015) of < 5 dg/min and a molecular-weight distribution M  w/M n in the range from 6 to 20. The invention also relates to a process for the preparation of the copolymer in the presence of a catalyst, an organoaluminum compound (B) and an organosilicon compound (C), in which the polymerization is carried out in two reaction steps, where the suspension medium in the first step is simultaneously the monomer, and a polypropylene having a viscosity of from 500 to 1400 ml/g which makes up a proportion of from 20 to 80% of the total polymer is prepared in the first reaction step.
Patent CA-2199211-A1 (CA)
Title: Method and apparatus for wash, resuspension, recollection and localization of magnetizable particles in assays using magnetic separation technology
Inventor: BUSHNELL STEVEN E
IPC: B03C1/28
Filed: 1997-03-05
Abstract: Method and apparatus for enabling resuspension wash and magnetic  localization  of  sample  components  bound  to particles  with magnetic  properties  in  reaction vessels during separation and wash for enhanced chemiluminescent signal  generation  in  biomedical  assays.    The  assays involve moving reaction vessels past magnetic arrays that partially localized the particles prior to passing a gap where washing occurs, with or without resuspension, after separating out the unbound particles and liquid.  The band of particles is further localized by a focusing magnet at the end of the array prior to dosing the vessel with acid for chemiluminescent purposes.   A block of soft magnetic material is employed in place of a magnet in the gap to minimize magnetic strength at the gap.   Trimmed magnets adjacent the gap cause left, then right, particle shifting that  localizes  the  magnetizable  particles.    The  gap enables  improved  resuspension  by  wash,   whereas  the localized particles enable more efficient resuspension by reagent.
Patent CA-2200707-A1 (CA)
Title: Novel prostaglandin synthase inhibitors
Inventor: BATT DOUGLAS GUY
IPC: A61K31/402
Filed: 1995-09-26
Abstract: This invention relates to ortho substituted phenyl compounds as inhibitors of prostaglandin synthase, to pharmaceutical compositions comprising such compounds and to methods of using such compounds as antiinflammatory and antipyretic agents. The class of compounds useful in this method of treatment is represented by formula (I).
Patent CA-2200977-A1 (CA)
Title: Aqueous oral compositions
Inventor: DIXON CLOYD JR
IPC: A61K8/19
Filed: 1995-08-21
Abstract: The present invention relates to aqueous oral compositions and methods of use providing improved antimicrobial activity and thereby reducing oral bacteria, mouth malodor and further promoting oral health.
Patent CA-2203141-A1 (CA)
Title: Fluid sampling device
Inventor: CLARK JAMES E II
IPC: G01N1/14
Filed: 1995-07-27
Abstract: A fluid sampling device (10) for use in obtaining a precise volume of fluid to be sampled from a sealed vessel (12) equipped with a hydraulic fitting (20) to which the fluid sampling device (10) is connectable. The device (10) has a fluid sampling float chamber (28) with an internally sealable top opening (33) which opens into a bottom end (50) of an air channel (48) and a bottom opening (38) which opens into a top end of a fluid channel (26). A floating ball (30) is located in said fluid sampling float chamber (28) and is sized to be sealingly sealable at the top opening (33). A vacuum generating means relying on air flow through a venturi (54) to draw air out of the fluid sampling chamber (28) through the air channel (48) is located above the top opening (33) of the float chamber (28). An air valve (62) is located down stream of the venturi (54) for controlling the direction of air flow through the venturi (54).
Patent CA-2203467-A1 (CA)
Title: Partially crystallizing enamel containing crystalline zinc borate seed material
Inventor: SAKOSKE GEORGE E
IPC: C03C8/14
Filed: 1997-04-23
Abstract: A ceramic enamel composition is described which contains a zinc-containing oxide frit, a zinc borate seed material, a pigment, and a vehicle. The zinc borate seed material is preferably crystalline in nature, and promotes crystal growth upon firing. A preferred crystalline zinc borate seed material is selected from the phases Zn3B2O6 and Zn(BO2)2. and mixtures thereof. Upon firing and press-forming a glass substrate coated with the enamel, components of the enamel adhere to the substrate while reducing sticking of the coated region to the forming die. The ceramic enamel is particularly useful in providing a colored border around the periphery of automotive glass, and is effective in improving appearance and reducing degradation of underlying adhesives by ultraviolet radiation.